Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 649 · 40 questions

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

1. 1.44 laddoos are packed in boxes of 3. How many laddoos are left over?
2. 2.85 − 68 =
3. 3.90 ÷ 6 =
4. 4.136 ÷ 4 =
5. 5.17 × 4 =
6. 6.45 + 9 =
7. 7.A cricket match starts at 3:10 and the first innings ends at 5:00. How many minutes did the innings last?
8. 8.16² =
9. 9.390 ÷ 6 =
10. 10.Half of 104 =
11. 11.25% of ₹120 =
12. 12.82 − 72 =
13. 13.14 + ? = 100
14. 14.What is the remainder when 69 is divided by 9?
15. 15.91 − 47 =
16. 16.48 + ? = 100
17. 17.You buy a water bottle for ₹14 and a pen for ₹44. You pay with a ₹100 note. How much change do you get, in rupees?
18. 18.29 + 42 =
19. 19.248 ÷ 8 =
20. 20.1008 − 988 =
21. 21.You start your homework at 8:20 and finish at 9:20. How many minutes did you work?
22. 22.76 × 3 =
23. 23.Double 56 =
24. 24.57 + 23 =
25. 25.90 − 29 =
26. 26.15 + 14 =
27. 27.Half of 102 =
28. 28.21 + 20 =
29. 29.19 × 8 =
30. 30.385 ÷ 5 =
31. 31.29² =
32. 32.77 − 21 =
33. 33.9 + 8 =
34. 34.10% of ₹760 =
35. 35.25% of ₹310 =
36. 36.160 ÷ 8 =
37. 37.295 ÷ 5 =
38. 38.28 + 13 =
39. 39.175 ÷ 5 =
40. 40.A cricket match starts at 7:45 and the first innings ends at 10:10. How many minutes did the innings last?

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